Over Díaz
Senior Quality Manager
Experience
Oct 2024 - Dec 2025
1 year 3 monthsSenior Quality Manager
Denys GmbH
- Quality assurance (QA/QC), as-built documentation and audit planning
- Coordination of inspections for open-cut and trenchless construction (HDD, microtunneling)
- Quality control of HDPE pipe welding, carrying out quality tests, pigging, pipe calibration and tightness testing (50–500 mm pipe diameter)
- Ensuring the highest safety, environmental and quality standards
Jul 2023 - Jun 2024
1 yearSenior Project Manager
Dorsch GmbH
- Detailed design of the hydraulic system for distributing treated wastewater from 22 treatment plants in six regions of Saudi Arabia
- Design of storage tanks (up to 200 m³/d), pumps (up to 2 m³/s, 10 bar) and water transmission lines (up to 100 km)
- SCADA and MEICA design
- Inspection of existing treatment plants, feasibility studies and procurement processes
- Leading an international design team (Qatar, Egypt, UAE)
- Managing subcontractors and stakeholder coordination
Apr 2022 - Sep 2022
6 monthsInterim Head of Structural Hydraulic Engineering
AFRY Deutschland
- Planning and execution of dike rehabilitation, dike construction and flood protection in northern Germany
- Water supply and disposal, drainage planning and water body protection
- Technical and disciplinary leadership, business development, controlling and personnel management
Jan 2020 - Dec 2021
2 yearsSenior Construction Supervisor
DMT GmbH
- Construction supervision of stormwater sewers and retention basins at Sheikh Shakhbout Medical Center, Abu Dhabi
- Documentation and specification review, checking construction drawings
- Monitoring budget, schedule and QA/QC
- Supervising contractors, subcontractors and suppliers
- Technical acceptance of materials and equipment
Jan 2020 - Dec 2020
1 yearProject Manager – Mine Expansion
DMT GmbH
- Technical project management and evaluation of the tailings dam
- Review of flood data, dam overtopping and breach risk
- Assessment of dam safety components
Jan 2019 - Dec 2019
1 yearProject Manager – Mine Dewatering Planning
DMT GmbH
- Technical project management and design of a pumping system for open-pit dewatering
Jan 2017 - Dec 2018
2 yearsProject Manager – Water Structures Design and Construction (PRODIA-KfW)
CES Consulting Engineers Salzgitter GmbH
- Project management for water supply, water treatment and stormwater projects in six cities
- Applying international EPC standards and coordinating multidisciplinary teams
- Tender management, procurement and contracting
- Documentation and specification review, checking construction drawings
- Monitoring budget, schedule and QA/QC
- Construction supervision and technical acceptance of materials and equipment
Jan 2016 - Dec 2016
1 yearProject Manager – Wastewater Treatment Plants
CES Consulting Engineers Salzgitter GmbH
- Technical project management, expert review and condition assessment of two treatment plants with sea inlet
- Review of maintenance measures
Jan 2015 - Dec 2015
1 yearSenior Construction Supervisor – WWTP Construction
CES Consulting Engineers Salzgitter GmbH
- Construction supervision of the Tra Vinh treatment plant, Vietnam
- Evaluating contractors and awarding work packages
- Documentation and specification review, checking construction drawings
- Monitoring budget, schedule and QA/QC
- Supervising contractors and subcontractors
- Technical acceptance of materials and equipment
Jan 2014 - Dec 2014
1 yearProject Manager – Hydropower Plant Design
CES Consulting Engineers Salzgitter GmbH
- Feasibility study and technical project management for a 9 MW hydropower plant in Armenia
Jan 2013 - Dec 2013
1 yearProject Manager – Design and Construction Supervision of WWTP
CES Consulting Engineers Salzgitter GmbH
- Reviewing design documents and construction supervision in Nha Trang, Vietnam
- Managing contractors and awarding work packages
- Documentation and specification review, checking construction drawings
- Monitoring budget, schedule and QA/QC
- Technical acceptance of materials and equipment
Jan 2012 - Dec 2012
1 yearTeam Leader – Offshore Wind Farm Construction
AREVA Wind und AREVA NP GmbH
- EPC-focused team leadership for offshore wind farm erection
- QA/QC, NDT and supplier management
- Technical acceptance and control of fabrication and assembly processes for steel components in compliance with EPC and HSE standards
Jan 2011 - Dec 2011
1 yearProject Manager – Water Treatment Plant Design and Construction
AREVA Wind und AREVA NP GmbH
- Technical project management of a turnkey EPC project for radioactive water treatment in Fukushima
- QA/QC, international supplier coordination and factory inspections
- Commissioning under high safety and quality requirements
Jan 2010 - Dec 2010
1 yearProject Manager – Atucha Nuclear Plant Expansion
AREVA Wind und AREVA NP GmbH
- Technical project management for piping and auxiliary systems at the Atucha plant, Argentina
- Quality control of documentation and materials
- NDT, factory inspection and supplier qualification
Jan 2009 - Dec 2009
1 yearProject Manager – OL3 Nuclear Plant Construction
AREVA Wind und AREVA NP GmbH
- Overseeing the production of steel control valves for Olkiluoto
- QA/QC, design review and planning of factory inspections
- Documentation review and coordination with suppliers and clients
Jan 2009 - Dec 2009
1 yearProject Manager – Urban Water Supply
CES Consulting Engineers Salzgitter GmbH
- Design of water supply systems and pumping stations in Kenya
- Hydraulic design of a 30 km water transmission pipeline (DN 600)
- Transient analysis under various scenarios
Jan 2008 - Dec 2008
1 yearConstruction Supervisor – Oguz-Gabala–Baku Water Transmission Pipeline Phase 2
CES Consulting Engineers Salzgitter GmbH
- Supervising the well field construction (72 production and 19 monitoring wells) and a 251 km transmission pipeline (197 km GRP, 54 km steel pipe, DN 2000, PN 10–25, 5 m³/s)
- Tender management, procurement and contracting
- Documentation and specification review, checking construction drawings
- Monitoring budget, schedule and QA/QC
- Technical acceptance of materials and equipment
Jan 2007 - Dec 2007
1 yearProject Manager – Pump Station Rehabilitation
CES Consulting Engineers Salzgitter GmbH
- Project management and evaluation of rehabilitation and expansion projects for water supply and drainage systems in Egypt
- Review of detailed design, training and construction supervision
- Documentation and specification review, checking construction drawings
- Monitoring budget, schedule and QA/QC
Jan 2006 - Dec 2006
1 yearProject Manager – Sewer System and WWTP Construction
CES Consulting Engineers Salzgitter GmbH
- Design review of mechanical equipment and pump stations in Pazardjik, Bulgaria
- Overseeing testing, pre-commissioning, commissioning and operational testing of the treatment plant
Jan 2005 - Dec 2005
1 yearConsultant – Sewer and WWTP Rehabilitation
CES Consulting Engineers Salzgitter GmbH
- Peer review and design audit for the rehabilitation of 33 wastewater pumping stations in Constanta, Romania
Jan 2001 - Dec 2004
4 yearsProject Manager – R&D Projects
PKW, Planungs und Konstruktionsbüro Wolfsburg GmbH
- Designing and implementing infrastructure projects to improve series production at Volkswagen
- Designing, coordinating and supervising conveyors for bodies, doors and seats
- Supervising steel staging, steel structures and ventilation systems
- Simulating production lines and conveyor systems
- Preparing specifications, QA/QC, supplier management and acceptance of test systems
Jan 1999 - Dec 1999
1 yearProject Manager – Water Resources for Energy Expansion
Hidrotec
- Hydraulic design for the expansion of the Mantaro hydropower plant, Peru
- Advising on sediment calculations and regulation of multiple lagoons (Apata-Tranca)
- Design of Pelton turbines, intake structures, sediment traps, forebays and penstocks
Jan 1994 - Dec 1998
5 yearsResearch Associate – River Sediment Transport
TU Braunschweig – Institut für Wasserbau
- Research on riprap structures, scour, erosion and sediment transport in rivers
Jan 1990 - Dec 1992
3 yearsProject Engineer – Hydropower Plant Design and Construction
Electroperu
- Technical coordination and supervision of hydraulic model tests to optimize intakes, sediment traps and bypass tunnels (Cañon del Pato)
- In-situ measurements to estimate suspended sediment loads and seasonal variations in the Santa River and at the Cañon del Pato and Carhuaquero hydropower plants
Summary
Dr.-Ing. Over Díaz is an experienced project manager and specialized civil and mechanical engineer with over 25 years of international experience in successfully delivering large projects in industrial plant engineering, especially in the energy, water and environmental sectors. His strengths lie in managing complex EPC projects (Engineering, Procurement, Construction), quality and risk management, and leading interdisciplinary teams worldwide.
Languages
Spanish
NativeGerman
AdvancedEnglish
AdvancedPortuguese
AdvancedFrench
ElementaryEducation
Oct 1994 - Jun 1998
Tech. Univ. Braunschweig
PhD Eng. · Hydraulic Engineering · Braunschweig, Germany
Oct 1990 - Jun 1992
Univ. Villareal
M.Sc. · Construction Management · Lima, Peru
Oct 1982 - Jun 1988
Univ. San Marcos
B.Sc. · Fluid Mechanics · Lima, Peru
Certifications & licenses
Energy Management System Auditor (ISO 50001)
Expert in Water, Soil and Contaminated Sites Issues
Welding Inspector
PSM I
PSPO I
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